<template>
    <div class="icons">
        <!-- 小图标 -->
        <swiper :options="swiperOptions">
            <swiper-slide v-for="(page,index) of pages" :key="index">
                <div 
                    class="icon" 
                    v-for="item of page" 
                    :key="item.id"
                >
                    <div class="icon-img">
                        <img class="icon-imgcontent" :src='item.imgUrl'>
                    </div>
                    <p class="icon-desc">{{item.desc}}</p>
                </div>
            </swiper-slide>
        </swiper>
    </div>
</template>

<script>
export default {
    name: 'HomeIcons',
    props:{
        iconList:Array
    },
    data(){
        return {
            // 定义数据  轮播图不自己滚动
            swiperOptions:{
                autoplay:false
            }
        }
    },
    // 定义一个计数属性
    computed:{
        pages (){
            const pages=[]
            // 对iconList进行循环
            this.iconList.forEach((item,index)=>{
                // 计算
                const page = Math.floor(index / 8)
                // 判断
                if(!pages[page]){
                    // 如果page不存在  page就等于空数组
                    pages[page]=[]
                }
                pages[page].push(item)
            })
            return pages
        }
    }
}
</script>

<style lang="stylus" scoped>
    // 引入
    @import '~styles/varibles.styl'
    @import '~styles/mixins.styl'
    .icons >>> .swiper-container
        height:0
        padding-bottom:50%
    .icons
        margin-top:.1rem
        .icon
            position:relative
            overflow:hidden   
            float:left
            width:25%
            height:0
            padding-bottom:25%
            .icon-img
                position: absolute
                top:0
                left:0
                right:0
                bottom:.44rem
                box-sizing:border-box
                padding:.1rem 
                .icon-imgcontent
                    display:block
                    margin:0 auto
                    height:100%
            .icon-desc
                position:absolute
                left:0
                right:0
                bottom:0
                height: .44rem
                line-height: .44rem
                text-align:center
                color: $darkTextColor
                ellipsis() 
</style>
